Air quality in Marlboro estimated
New Jersey, United States. No ground monitor we can use is in this city, so these numbers are model estimates, not measurements.
≈ 4 µg/m³
Good
Estimated PM2.5, 7-day average to 2026-09-30, about 0.3× the WHO 24-hour guideline. 30-day average ≈ 5 µg/m³.
Model estimate from the Copernicus Atmosphere Monitoring Service (CAMS), scaled by 0.50 to match 10 measured cities within 300 km over the last week. Adjusted this way, a single day lands within ×1.5 of what a monitor would read about two times in three: a guide, not a measurement. Not ranked on SmogRank's boards.
Last 30 days, estimated
Daily means, UTC days. Dashed line: WHO 24-hour guideline (15 µg/m³).
Measured cities nearby
| City | Distance | 7-day average |
|---|---|---|
| New Brunswick | 26 km | 2.8 µg/m³ |
| Linden | 34 km | 3.8 µg/m³ |
| Elizabeth | 39 km | 4.3 µg/m³ |
| Toms River | 40 km | 5.2 µg/m³ |
| Bayonne | 41 km | – |
| Trenton | 44 km | 3.4 µg/m³ |
Estimates contain modified Copernicus Atmosphere Monitoring Service information 2026. How estimates are made.